Fuel Cell System And Method For Inspecting Gas Leakage Of Same

摘要

A fuel cell system of the present invention includes a fuel cell stack, a fuel system for supplying a fuel gas to the fuel cell stack, and on-off valves which form a closed space not including the fuel cell stack in the fuel system. The closed space is filled with an inspection gas from the on-off valve which functions also as an inspection gas inlet port. After completion of the inspection, the inspection gas in the closed space is discharged from the on-off valve which functions also as an inspection gas outlet port.